Samsung SDI Secures U.S. Patent for Composite Anode Material with Enhanced Lifespan and Energy Density

Published: Apr 1, 2026 17:40

Save

According to the U.S. Patent and Trademark Office on the 30th, Samsung SDI has filed for and is in the process of securing a patent for a composite anode material.
The patent, titled “Composite anode active material and anode and lithium secondary battery including the same,” was originally filed on July 10, 2020, and was published on March 24. It covers an anode material combining graphite with an average particle size (D50) of approximately 18μm or larger, graphite of around 10μm or larger, and a silicon-carbon composite.
The technology focuses on enhancing structural stability and extending battery lifespan by densely filling the electrode with graphite particles of different sizes.

Data Source Statement: Except for publicly available information, all other data are processed by SMM based on publicly available information, market communication, and relying on SMM‘s internal database model. They are for reference only and do not constitute decision-making recommendations.

For any inquiries or to learn more information, please contact: lemonzhao@smm.cn

For more information on how to access our research reports, please contact:service.en@smm.cn

Related News

5 hours ago

Lithium Battery Exports Surge 63% in Jan-Feb 2026, Prices Stabilize After Sharp Drops

According to data from the CPCA, lithium battery exports reached 926,000 mt in January-February 2026, up 63%, while export value rose 43% to $14.2 billion. The export price of lithium-ion batteries fell from $27,300/mt in 2023 and $20,100/mt in 2024 to $15,700/mt, and further to $15,300/mt in 2026. The average price in 2026 declined only 10% YoY, a marked improvement from the 26% drop in 2024 and the 22% drop in 2025.

5 hours ago

11 hours ago

1 Billion m²/Year Dry-Process Separator Project For Lithium/Sodium Batteries Lands In Nanning

Recently, Nanning Urban Construction Investment Group and Huahui New Material Technology Co., Ltd. signed an agreement for the lithium/sodium battery dry-process separator intelligent manufacturing project. The total investment for the project is approximately 500 million yuan. It plans to build a new production line with an annual capacity of 1 billion square meters of dry-process separators for lithium/sodium batteries. The project will introduce Guangxi's first new-generation dry-process uniaxial stretching and 4.2-meter-wide biaxial stretching battery separator production line. It is expected that upon reaching full capacity, the annual output value will be approximately 800 million yuan, creating 170 jobs, and establishing the first battery base film production base in Guangxi.

11 hours ago

Apr 2, 2026 19:40

Seres Q1 NEV Sales Exceeded 78,000 Units, up 43.9% YoY

On April 1, Seres released its March production and sales report. The data showed that Seres' NEV monthly sales reached 22,706 units in March, up 20.74% YoY; cumulative sales for January to March this year reached 78,500 units, up 43.9% YoY.

Apr 2, 2026 19:40